Radioactive IsotopesA. Are electrically unbalancedB. Behave the same chemically and physically but differ biologically from other isotopesC. Are the same physically and Biologically but differ from other isotopesD. Have an excess number of NeutronsE. Are produced when substances are exposed to radiation

Which is not a compound?A. SaltB. CarbohydrateC. CarbonD. SugarE. Methane

The negative subatomic particle is theA. Neutron B. ProtonC. ElectronD. A and BE. B and C

The positive subatomic particle is the

A. Neutron B. ProtonC. ElectronD. A and BE. B and C

The Neutral subatomic particle is theA. NeutronB. ProtonC. ElectronD. A and BC. None of these

The nucleus of an atom containsA. Neutrons and ProtonsB. Neutrons and ElectronsC. Protons and ElectronsD. Protons onlyE. Neutrons only

The atomic weight of an atom is determined bu the weight of the A. Neutrons and ProtonsB. Neutrons and ElectronsC. Protons and ElectronsD. Protons onlyE. Neutrons only

The atomic number of an atom is determined by the number ofA. Neutrons and ProtonsB. Neutrons and ElectronsC. Protons and ElectronsD. Protons onlyE. Neutrons only

All atoms of an element have the same number of A. IonsB. ProtonsC. NeutronsD. ElectronsE. Protons and Neutrons

A hydrogen bond is A. A sharing of a pair of electrons between a hydrogen and an oxygen nucleusB. A sharing of a pair of electrons between a hydrogen nucleus and either an oxygen or a nitrogen nucleusC. An attractive force that involves a hydrogen atom and an oxygen or a nitrogen atom that are either in 2 different molecules or within the same moleculeD. None of the aboveE. All of the above

What is formed when an atom loses or gains an electron?A. MoleB. IonC. MoleculeD. BondE. Reaction

Atoms of liquid mercury are strongly attracted to other atoms of liquid mercury because of the .?. between the mercury atomsA. cohesionB. adhesionC. Ionic bondingD. Polar covalent bonding

When 2 water molecules that are hydrogen bonded separate, occasionally one of the hydrogen atoms will be transferred, forming H30+ and OH- This is called the ____ of waterA. ReductionB. OxidationC. IonizationD. Hydrogenation

Which of the following bonds requires the most energy to break (when in an aqueous solution?)A. CovalentB. IonicC. HydrogenD. van der WALLS

In order for water to become a vapor, there must be sufficient heat energy toA. Break its hydrogen bondsB. Break its covalent bondsC. lower its specific heatD. Raise its specific heat

The distance of an orbiting electron from its nucleus is directly related to theA. distance from an atom from any other atomB. energy level of the electronC. name of the element to which the atom belongsD. Number of protons in the nucleusE. total number of protons in the nucleus

A covalent double bond could form between any of the following pairs of atoms exceptA. carbon and another carbonB. carbon and hydrogenC. carbon and a nitrogenD. carbon and an oxygenE. oxygen and another oxygen

Because the water molecule has 2 distinct ends, each with a partial electrical charge, water is said to beA. ionicB. liquidC. magneticD. neutralizedE. polar